Question

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Answer 1

Answer:

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Explanation:

Volume of solute = 12 ml

Volume of solution = volume of solute + volume of solvent    

Volume of solvent = volume of solution – volume of solvent

= 100 – 12 = 88 ml

concentration=volume of solutevolume of solute+volume of solvent×100  

12=1212+x×100

x=88

Hence, 88 ml of water will be added to 12 ml of alcohol in order to prepare a concentration 12%.